Ash-sifter



(No Model.) 7

J. B. OHADBORN & E. ANDROVETT.

ASH SIFTER. No. 569,745. Patented Oct. 20, 1896.

UNITED STAT S PATENT FFlGE.

JOHN CHADBORN A ND EDVARD ANDB-OVETT, OF NEXV BURG, NERV YORK.

ASH-SIFTER.

SPECIFICATION forming part of Letters Patent No. 569,745, dated October20, 1896.

Application filed March 14, 1896. Serial No. 583,163. (No model.)

To aZZ whom it may concern Be it known that we, J only B. CHADBORN andEDWARD ANDnovErT, citizens of the United States, and residents ofNewburg, in the county of Orange and State of New York, have inventedcertain new and useful Improvements in Ash-Sifters, of which thefollowing is a specification, reference being had to the accompanyingdrawings, forming a part thereof, in which similar letters of referenceindicate corresponding parts.

This invention relates to what are known as ash-sifters; and the objectthereof is to provide an improved device of this class whereby thecinders, portions of charred coal, coke, and other products may bequickly and easily separated from the ashes of a furnace, stove, orgrate, a further object being to provide a device of this class which isnovel in construction and operation, and which con-. sists of a suitablecasing, in which is mounted a revoluble cylindrical screen, which isalso of novel construction, and into which the ashes, together with thecharred coal, the cinders, and other products are placed 5 and withthese and other objects in View the invention consists in theconstruction combination, and arrangement of parts hereinafter describedand claimed.

The invention is fully disclosed in the following specification, ofwhich the accompanying drawings form a part, in which- Figure 1 is atransverse section of Fig. Fig. 2, a side view of our improvedash-sitter with part of one side thereof broken away, and Fig. 3 a planview.

In the practice of our invention we provide a casin g the centralportion of which is cylindrical in form, as shown at A, and saidoylindrical portion is arranged longitudinally of the casing and aboutthe middle thereof, and below said cylindrical portion is a rectangularbase B, in the bottom of which is mounted a drawer b, and above thecylindrical portion the casing is also rectangular in form, as shown atD, and the ends 0 and E are vertical and parallel, as shown in Fig. 2.

The rectangular top D of the casing, which is open, is provided with adoor G, and secured adjacent to the top D are the arms 7t; of aspring-frame K, which is composed of strong spring-wire bent into arectangular or square form, and which is placed over the opening in thetop D, which is similar in form, and which is adapted to be held in theposition shown in Fig. 1 by a spring-catch L, which operates inconnection therewith, as shown at I YVhen the wire frame K is held inthe position shown .in Figs. 1 and 3, the door G. will extend inwardlyand downwardly, as shown in said Fig. 1, and it will be observed thatthe arms 70 of the spring-frame K are passed through the back of the topof the casin g at 7.3

Mounted in the cylindrical portion A of the casing is a convolute screenM, which is composed of wire-mesh or any preferred and similar material,and which is provided with circular end pieces m, through which passes ashaft m one end of which is provided with a crank m, by which the screenis revolved.

One side of the screen M is secured to the end pieces near the outeredge thereof, as shown at m in Fig. 1, and said screen is carried aroundsaid end pieces about threequarters of the circumference thereof, andthen bent inwardly, as shown at m and the door G is adapted to rest uponthis inwardlyourved port-ion m of the screen.

In operation the ashes, oinders, charred coal, coke, and othersubstances are poured into the screen through the opening in the top ofthe casing and, striking upon the door G, slide downwardly into theconvolute screen and the door G is then raised by the frame K, so as toclose the opening in the top of the casing, in which operation the frameK is thrown backwardly, and the door G is held in the closed position bythe spring-catch L, which is provided with an inwardly-directed shoulderor projection L for this purpose.

The screen-cylinder is then revolved in the direction of the arrow a,(shown in Fig. 1,)

and in this operation, as will be understood,

ashes are sifted therethrough into the drawer b, and the cinders,charred coal, coke, and similar products or articles remain in thescreen. hen the ashes are all sifted out in the above-describedoperation, the drawer Z) is emptied and replaced, after which the screenis revolved in the opposite direction, and in this operation all thecinders, charred coal, COliO, and similar articles will be discharged oremptied into the drawer b and may then be removed therefrom. Thisoperation is rendered possible by reason of the form of the convolutescreen M and the manner in which it is connected with the circular endpieces on and the open space m between the separate sides of the screen,and whenever it is desired to place more ashes within the screen thespring-frame K is again lowered into the position shown in Fig. 1, inwhich position the door G drops downwardly and again rests upon theinclined sides m of the convolute screen.

Our improved sifter may be used for sifting flour and other articles aswell as ashes; and this device is simple in construction and operationand is perfectlyadapted to accomplish the result for which it isintended, and it is evident that changes in and modifications of theconstruction herein described may be made without departing from thespirit of our invention or sacrificing its advantages, and we reservethe right to make all such alterations therein and modifications thereofas fairly come within the scope of the invention.

Having fully described our invention, we claim as new and desire tosecure by Letters Patent 1. In a sifter the combination of a casingprovided with a circular portion, a bottom portion provided with aremovable drawer and a top portion having an opening therein, saidcylindrical casing being provided with a convolute sifter which ismounted therein, directly beneath said opening and which is composed ofa cylindrical screen connected with cireularcnd pieces, one side of thescreen being connected to the end pieces at or adjacent to the perimeterthereof and being carried partially around the same and the oppositeside being inwardly curved and the upper portion of said casing beingprovided with a downwardly-moving door adapted to close the opening andalso to be held in a downwardly-inclined position so that it rests uponthe inwardly-curved side of the screen and means for holding said doorclosed, substantially as described.

2. In an ash-sifter, the combination of a casing provided with acircularor cylindrical portion, a bottom portion provided with aremovable drawer, and a top portion provided with an opening, saidcylindrical casing being provided with a convolute sifter which ismounted therein directly under the feed-opening, and which is composedof a convolute screen connected with circular end pieces, one side ofthe screen being secured to the end pieces at, or adjacent to the perimeters thereof, and being carried partially around the same, and theopposite side being inwardly curved and said upper portion beingprovided with a door which is adapted to close the opening therein, andalso to be held in a downwardly-inclined position, so that it rests uponthe inwardly-curved side of the screen, and said door being supported bya rectangular spring-frame which surrounds the opening in the top of thecasing, and which is provided with arms which extend therethrough, towhich the door is secured, substantially as shown and described.

3. In an ash-sifter, the combination of a casin g provided withacircular or cylindrical portion, a bottom portion provided with aremovable drawer and a top portion provided with an opening, saidcylindrical casing being provided with a convolute sifter which ismounted therein and which is composed of a convolute screen connectedwith circular end pieces, one side of the screen being secured to theend pieces at, or adjacent to the perimeters thereof, and being carriedpartially around the same, and the opposite side being inwardly curvedand said upper portion being provided with a door which is adapted toclose the opening therein, and also to be held in a downwardly-inclinedposition so that it rests upon the inwardlycurved side of the screen,and said door being supported by a rectangular spring-frame whichsurrounds the opening in the top of the casing, and which is providedwith arms which extend therethrough, to which the door is secured, andsaid convolute screen being provided with a shaft which extendstherethrough, and through the casing and which is provided at one sidewith acrank by which it is revolved, substantially as shown anddescribed.

4. In an ash-sifter, substantially herein shown and described, thecombination of a casing A having a cylindrical portion arrangedlongitudinally and centrally thereof, a rectangular base portion B, inthe bottom of which is mounted a drawer Z), the upper portion D of saidcasing being rectangular and open, and provided with a door G adapted todepend into the casing, and forming a chute for the material introduced,and also to close the opening in the top, said door being secured toarms of the rectangular spring-frame K arranged in the opening in saidtop D, and which is adapted to be held in position by a spring-catch Lsecured to one side of the casing which also is adapted to engage thefree edge of the door to retain the same in a closed position, andcircular head-pieces m mounted on the shaft m which passes through thecylindrical portion of the presence of the subscribing Witnesses, this9th day of March, 1896,

JOHN B. OHADBORN. EDWARD ANDR-OVETT.

Vitnesses ISAAC ARNOT, FREDERICK THEALL.

